Gigi Hadid - 20
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The UNSTOPPABLE Generation… 8 Of The Most POWERFUL Under-21s On Planet Earth!
3. Gigi Hadid - 20
She's one of the most sought after models of the moment AND she's managed to bag none other than Zayn Malik as her celeb other half. Gigi's career has gone from strength to strength of late - and the fact she's established herself as a Victoria's Secret Angel has only made her even more lauded in the modelling world. Picture: Getty